Question

Question 3. What are the dimensions of energy?
1. [L][T
!2
]
2. [M ][L][T
!2
]
3. [M ][L2
][T
!2
]
4. [M ][L2
][T
!3
]
5. None of the above

Answer 1

It's \[M^1L^2T^{-2}\], you can get that from the equation of Kinetic energy (i.e \[K=\frac{1}{2}\mathrm{mv^2}\])